7.5X55 Swiss and Berdan Priming with the GP11 Brass, Powder loading Pt#3 @Thorsaxe777
7.5X55 Swiss and Berdan Priming with the GP11 Brass, Powder loading Pt#3  @Thorsaxe777
Uploaded November 2017 | Updated September 2026, 2 weeks ago
This is the powder loading of the 7.5X55, I'm using IMR4320 as propellant and a 174 HPBT Match Sierra Bullet. THIS IS NOT A LISTED LOADING AND IS FOR MY USE ONLY. Do not try at home.
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7.5X55 Swiss and Berdan Priming with the GP11 Brass, Powder loading Pt#3

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